package thinkingInJava.arrays;

//: arrays/ContainerComparison.java
import java.util.*;
import static thinkingInJava.YTool.YPrint.*;

class BerylliumSphere {
private static long counter;
private final long id = counter++;
public String toString() { return "Sphere " + id; }
}

public class ContainerComparison {
public static void main(String[] args) {
  BerylliumSphere[] spheres = new BerylliumSphere[10];
  for(int i = 0; i < 5; i++)
    spheres[i] = new BerylliumSphere();
  print(Arrays.toString(spheres));
  print(spheres[4]);

  List<BerylliumSphere> sphereList =
    new ArrayList<BerylliumSphere>();
  for(int i = 0; i < 5; i++)
    sphereList.add(new BerylliumSphere());
  print(sphereList);
  print(sphereList.get(4));

  int[] integers = { 0, 1, 2, 3, 4, 5 };
  print(Arrays.toString(integers));
  print(integers[4]);

  List<Integer> intList = new ArrayList<Integer>(
    Arrays.asList(0, 1, 2, 3, 4, 5));
  intList.add(97);
  print(intList);
  print(intList.get(4));
}
} /* Output:
[Sphere 0, Sphere 1, Sphere 2, Sphere 3, Sphere 4, null, null, null, null, null]
Sphere 4
[Sphere 5, Sphere 6, Sphere 7, Sphere 8, Sphere 9]
Sphere 9
[0, 1, 2, 3, 4, 5]
4
[0, 1, 2, 3, 4, 5, 97]
4
*///:~
